RR/AT/JW/BAM/LX/XFactor/Ebol question(s)

1) what kind of lean mass stack is proving to be the most beneficial ...considinering the popular OTC things are - - RR/AT/JW/BAM/LX/XFactor/Ebol"

2) how long should one wait before doing a stack consisting of a few of the products listed aboe (ie. ebol/xfactor or RR/AT/LX) after comming off a cycle of phera (and of course after PCT)...and how long should one wait before doing another cycle...(I know the minimum between cycles is timeon + pct but i'm asking if one should take time between cycles of hormonal stuff and like, ebol/xfactor/?)